Specifies how principal and identity objects should be created for an application domain. The default is UnauthenticatedPrincipal.
For performance reasons, the default principal and identity objects are not created until they are needed. If a principal is explicitly added to the current thread, a default principal is not created and the principal policy setting is ignored.
No principal or identity objects should be created.
Principal and identity objects for the unauthenticated entity should be created. An unauthenticated entity has GenericIdentity.Name set to the empty string ("") and GenericIdentity.IsAuthenticated set to false.
Principal and identity objects that reflect the operating system token associated with the current execution thread should be created, and the associated operating system groups should be mapped into roles.